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66 lines (60 loc) · 2.16 KB
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import {Injectable} from '@angular/core';
import {HTTP_PROVIDERS, Http, XHRBackend, XHRConnection, ConnectionBackend, RequestOptions, RequestOptionsArgs, ResponseOptions, ResponseType, Response, Request, BrowserXhr, XSRFStrategy} from '@angular/http';
import {Observable} from 'rxjs/Observable';
import 'rxjs/add/observable/fromPromise';
import {NSFileSystem} from '../file-system/ns-file-system';
export class NSXSRFStrategy {
public configureRequest(req: any) {
// noop
}
}
@Injectable()
export class NSHttp extends Http {
constructor(backend: ConnectionBackend, defaultOptions: any, private nsFileSystem: NSFileSystem) {
super(backend, defaultOptions);
}
/**
* Performs a request with `get` http method.
* Uses a local file if `~/` resource is requested.
*/
get(url: string, options?: RequestOptionsArgs): Observable<Response | any> {
if (url.indexOf('~') === 0 || url.indexOf('/') === 0) {
// normalize url
url = url.replace('~', '').replace('/', '');
// request from local app resources
return Observable.fromPromise(new Promise((resolve, reject) => {
let app = this.nsFileSystem.currentApp();
let localFile = app.getFile(url);
if (localFile) {
localFile.readText().then((data) => {
resolve(responseOptions(data, 200, url));
}, (err: Object) => {
reject(responseOptions(err, 400, url));
});
} else {
reject(responseOptions('Not Found', 404, url));
}
}));
} else {
return super.get(url, options);
}
}
}
function responseOptions(body: string | Object, status: number, url: string): Response {
return new Response(new ResponseOptions({
body: body,
status: status,
statusText: 'OK',
type: status === 200 ? ResponseType.Default : ResponseType.Error,
url: url
}));
}
export const NS_HTTP_PROVIDERS: any[] = [
HTTP_PROVIDERS,
{ provide: XSRFStrategy, useValue: new NSXSRFStrategy() },
NSFileSystem,
{ provide: Http, useFactory: (backend, options, nsFileSystem) => {
return new NSHttp(backend, options, nsFileSystem);
}, deps: [XHRBackend, RequestOptions, NSFileSystem]
}
];